|Fighting Style||Chinese Kenpo (Kongo-Ken)|
Earth Theory (地の理, Chi no Ri) is a fighting technique.
The fighter uses all his strength, kicking strongly the ground, to boost his power with a punch. Kaioh Chin is the best user of this technique. In the second series of the manga, he almost defeated Kaioh Jyaku with this punch.
Mohammad Alai Jr can use a very similar technique. He also kicks the ground during a punch.